CN107511707A - A kind of clamping tool - Google Patents
A kind of clamping tool Download PDFInfo
- Publication number
- CN107511707A CN107511707A CN201710807761.1A CN201710807761A CN107511707A CN 107511707 A CN107511707 A CN 107511707A CN 201710807761 A CN201710807761 A CN 201710807761A CN 107511707 A CN107511707 A CN 107511707A
- Authority
- CN
- China
- Prior art keywords
- installation end
- motion bar
- clamping element
- clamping
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 72
- 230000033001 locomotion Effects 0.000 claims abstract description 69
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920001967 Metal rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a kind of clamping tool, including main shaft, motion bar and clamping element；Main shaft is articulated in outside lathe；Main shaft is provided with movable chamber；Motion bar is movable to be installed in movable chamber；One end of main shaft forms installation end；Clamping element is removably fixed to installation end；Motion bar can be towards close or remote installation end motion；Motion bar stretches into clamping element when towards close to installation end motion；The one end of clamping element away from installation end is provided with elastic portion；Motion bar is provided with press section close to one end of installation end；Press section is used to extrude elastic portion when motion bar stretches into clamping element, so that radially outward opening of the elastic portion along main shaft.A kind of clamping tool of the present invention, can make workpiece realize that Quick-clamped is fixed.Meanwhile also there is easy to operate advantage relative to the chuck clamping device applied in prior art.So, be advantageous to improve installation effectiveness.
Description
Technical field
The present invention relates to a kind of technical field of lathe spindle, more particularly to a kind of clamping tool.
Background technology
At present, in machine components processing, lathe is a kind of more conventional process equipment.Lathe generally comprises lathe main
Axle and the lathe spindle clamping device for clamping workpiece.It is usually to use chuck in daily middle lathe spindle clamping device,
Chuck is installed on lathe spindle end.It is clamped and unclamps to machined part by adjusts chuck can.Although chuck
Also it can realize and fix Workpiece clamping；
But there is following defect in existing chuck：
(1) chuck is when clamping workpiece, it will usually is limited by the clamping position size of workpiece；
(2) clamping force is uncontrollable, easily workpiece is deformed；
(3) it is inconvenient for operation, operating efficiency can be reduced.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of clamping tool, and it can make workpiece real
Existing Quick-clamped is fixed.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of clamping tool, including main shaft, motion bar and clamping element；The main shaft is articulated in outside lathe；The master
Axle is provided with movable chamber；The motion bar is movable to be installed in the movable chamber；One end of the main shaft forms installation end；It is described
Clamping element is removably fixed to the installation end；The motion bar can be transported towards close to or away from the installation end
It is dynamic；The motion bar stretches into the clamping element when towards close to the installation end motion；The clamping element is away from the installation
The one end at end is provided with elastic portion；The motion bar is provided with press section close to one end of the installation end；The press section is used for
The motion bar extrudes the elastic portion when stretching into the clamping element, so that the elastic portion radially outward opening along the main shaft
Open.
Further, have elastic component built in the movable chamber；The flexible member, which is used for offer, stretches the motion bar
Enter the elastic stress of the clamping element.
Further, the movable chamber is provided with limited step；The one end of the motion bar away from the installation end is provided with limit
Position boss；The flexible member is located between the positive stop lug boss and limited step；The positive stop lug boss is in the activity
The bottom wall of the movable chamber is connected to when bar is towards close to the installation end motion.
Further, the bottom wall of the movable chamber is provided with the first jack hole；The positive stop lug boss is away from the installation end
One end is provided with extension；The extension is connected to first jack hole, and is stretched out by first jack hole.
Further, the one end of the extension away from the installation end is provided with compression face；The main shaft is away from the peace
The one end at dress end is provided with straight line driving mechanism；The straight line driving mechanism is used for compression face described in top pressure, so that the motion bar
Away from the installation end motion.
Further, the clamping element is provided with the second jack hole；Second jack hole is communicated in the movable chamber；It is described
Motion bar is connected to second jack hole.
Further, the one end of the clamping element away from the installation end is communicated with the opening of second jack hole
Groove；The open slot is axially extending along the clamping element；The side wall of the open slot forms the elastic portion.
Further, the longitudinal cross-section of the press section is tapered；The external diameter of the longitudinal cross-section is by away from the installation
The one end at end tapers into towards one end close to the installation end.
Further, the clamping element is provided with multiple mounting holes；Central shaft of multiple mounting holes around the clamping element
Line circumference array；Each mounting hole is each equipped with threaded fastener；The installation end is provided with multiple screwed holes；It is multiple described
Screwed hole corresponds screw thread with multiple threaded fasteners and coordinated.
Further, the clamping element is provided with guide part close to one end of the installation end；The guide part stretches into described
In movable chamber, so that the mounting hole docks with screwed hole.
Compared with prior art, the beneficial effects of the present invention are：By being provided with press section and bullet on the clamping tool
Property portion.Workpiece is sheathed in elastic portion in advance.Press section is set to be squeezed in elastic portion by external force.In this manner it is possible to make bullet
Property portion is flared out, so that workpiece is fixed on main shaft.Similarly, press section is made to depart from elastic portion by external force.So, so that it may
So that workpiece to be removed.As can be seen here, the clamping tool, workpiece can be made to realize that Quick-clamped is fixed.Meanwhile relative to prior art
Applied in chuck clamping device also there is easy to operate advantage.So, be advantageous to improve installation effectiveness.
Brief description of the drawings
Fig. 1 is the structural representation of clamping tool of the present invention；
Fig. 2 is the close-up schematic view at A in Fig. 1；
Fig. 3 is the structural representation of the clamping element of clamping tool of the present invention.
In figure：10th, main shaft；11st, movable chamber；111st, limited step；12nd, installation end；13rd, the first jack hole；20th, it is movable
Bar；21st, press section；22nd, positive stop lug boss；221st, extension；222nd, compression face；30th, clamping element；31st, elastic portion；32nd, second wear
Connect hole；33rd, open slot；34th, mounting hole；35th, guide part；40th, flexible member；50th, straight line driving mechanism.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
As Figure 1-3, a kind of clamping tool, including main shaft 10, motion bar 20 and clamping element 30.Specifically, main shaft
10 are articulated in outside lathe；Movable chamber 11 is provided with main shaft 10；Motion bar 20 is movable to be installed in movable chamber 11；Main shaft 10
One end formed installation end 12；Clamping element 30 is removably fixed to installation end 12；Motion bar 20 can towards close or
Person moves away from installation end 12；Motion bar 20 stretches into clamping element 30 when towards close to the motion of installation end 12；It is remote in clamping element 30
One end from installation end 12 is provided with elastic portion 31；In motion bar 20 press section 21 is provided with close to one end of installation end 12；Press section
21 are used to extrude elastic portion 31 when motion bar 20 stretches into clamping element 30, so that radially outward the opening along main shaft 10 of elastic portion 31
Open.
On the basis of said structure, when using the clamping tool, first the workpiece by required processing is sheathed on elastic portion
On 31.When needing Workpiece clamping, it is only necessary to motion bar 20 is moved towards close to installation end 12 by external force.In this process
In, motion bar 20 can be stretched into clamping element 30.In this manner it is possible to press section 21 is set to be squeezed in elastic portion 31.In press section 21
When being squeezed in elastic portion 31, elastic portion 31 can be along the radially outward opening of main shaft 10.In the process, elastic portion 31 can clamp work
The endoporus of part, so that workpiece is fixed on main shaft 10.When needing to remove workpiece, it is only necessary to by external force make motion bar 20 to
And moved away from installation end 12, so that motion bar 20 stretches out in clamping element 30.In this manner it is possible to press section 21 is set to depart from elastic portion
31, so as to which workpiece is removed.Herein, elastic portion 31 can be made up of thermoplastic, metal-rubber, metal clips.
No matter which kind of material is elastic portion 31 use, as long as elastic deformation can occur for elastic portion 31.Similarly, press section 21 can be by
Metal material, plastics, rubber composition.No matter which kind of material press section 21 uses, as long as press section 21 can be in extruding elastic portion 31
When, force elastic portion 31 that elastic deformation occurs.
It is in the present embodiment, built-in in movable chamber 11 to have elastic component 40 as shown in figure 1, further；Flexible member
40 are used to provide the elastic stress for making motion bar 20 stretch into clamping element 30.Specifically, flexible member 40 can specifically use spring.
When needing to clamp workpiece, motion bar 20 can be driven towards close to installation end by using elastic stress caused by spring
12 motions.In this manner it is possible to motion bar 20 is set to stretch into clamping element 30.Because the size of elastic stress caused by spring can be with
It is controlled by adjusting the decrement of spring, thus work of the elastic portion 31 suitable for the various unlike materials of clamping can be made
Part.
As shown in figure 1, further, in the present embodiment, limited step 111 is provided with movable chamber 11；In motion bar
20 one end away from installation end 12 are provided with positive stop lug boss 22；Flexible member 40 is located in positive stop lug boss 22 and limited step 111
Between；Positive stop lug boss 22 is connected to the bottom wall of movable chamber 11 when motion bar 20 is towards close to the motion of installation end 12.Specifically, it is
The flexible member 40 is set to produce the elastic stress for making motion bar 20 stretch into clamping element 30 at work.One end of flexible member 40 is supported
Limited step 111 is connected to, the other end of flexible member 40 is connected to positive stop lug boss 22.So, when motion bar 20 is by outer masterpiece
During with being moved away from installation end 12, positive stop lug boss 22 can extrude flexible member 40.At this moment, flexible member 40 is in compression shape
State.When cancelling external force, flexible member 40 can discharge pressure.In the process, the top pressure positive stop lug boss 22 of flexible member 40, so that
Positive stop lug boss 22 is connected to the bottom wall of movable chamber 11, i.e. motion bar 20 moves towards close to installation end 12.By provided with such
Limited step 111 and positive stop lug boss 22 just can make flexible member 40 produce above-mentioned elastic stress.
Certainly, for the ease of elastic stress size caused by regulation elasticity element 40, can match somebody with somebody on positive stop lug boss 22
It is equipped with pad.The thickness of pad can select according to the actual requirements.In this manner it is possible to meet the workpiece of different size and material
Cylindrical turning is processed.Meanwhile in order to increase the contact surface of flexible member 40 and limited step 111, can be on limited step 111
Pad is installed.
As shown in Figure 1 further, in the present embodiment, the first jack hole 13 is provided with the bottom wall of movable chamber 11；Limiting
The position one end of boss 22 away from installation end 12 is provided with extension 221；Extension 221 is connected to the first jack hole 13, and by first
Jack hole 13 stretches out.Specifically, extension 221 is promoted by external force, so that it may so that motion bar 20 is transported away from installation end 12
It is dynamic.In this manner it is possible to motion bar 20 is set to stretch out clamping element 30.By being easy to promote motion bar 20 provided with such extension 221.
As shown in figure 1, further, in the present embodiment, it is provided with and is pressurized in the one end of extension 221 away from installation end 12
Face 222；Straight line driving mechanism 50 is provided with the one end of main shaft 10 away from installation end 12；Straight line driving mechanism 50 is pressurized for top pressure
Face 222, so that motion bar 20 moves away from installation end 12.Specifically, straight line driving mechanism 50 can specifically use cylinder
Component.When cylinder assembly is passed through gas, the output end meeting top pressure of cylinder assembly is in compression face 222.In this manner it is possible to make activity
Bar 20 moves away from installation end 12.At this moment, motion bar 20 can stretch out in clamping element 30, i.e. press section 21 departs from elastic portion
31.By being easy to top pressure motion bar 20 provided with such straight line driving mechanism 50 and compression face 222, so that motion bar 20 stretches out
Clamping element 30.
In addition, above-mentioned compression face 222 can also be directly arranged on side of the positive stop lug boss 22 away from the installation end 12.
When starting straight line driving mechanism 50, the external part of straight line driving mechanism 50 can be stretched into movable chamber 11 and pushed up by the first jack hole 13
It is pressed on compression face 222.Motion bar 20 can also so realized to move away from installation end 12.
Certainly, straight line driving mechanism 50 can also use line handspike, linear electric motors, lead screw motor etc..No matter what is used
Kind mode, as long as energy top pressure compression face 222 is so that motion bar 20 moves away from installation end 12.
As shown in figure 3, further, in the present embodiment, the second jack hole 32 is provided with clamping element 30；Second wears and connects
Hole 32 is communicated in movable chamber 11；Motion bar 20 is connected to the second jack hole 32.Specifically, worn because motion bar 20 is connected to second
Hole 32 is connect, thus in motion bar 20 towards when being moved close to installation end 12, press section 21 can be stretched into the second jack hole 32 and squeezed
It is pressed in elastic portion 31.It is relative between control press section 21 and elastic portion 31 by being easy to provided with such second jack hole 32
Position.
As shown in figure 3, further, in the present embodiment, it is communicated with the one end of clamping element 30 away from installation end 12
In the open slot 33 of the second jack hole 32；Open slot 33 is axially extending along clamping element 30；The side wall of open slot 33 forms elasticity
Portion 31.Specifically, in order that elastic portion 31 is easy to open.Three equally distributed openings are offered in the outer rim of elastic portion 31
Groove 33.When press section 21 is squeezed in elastic portion 31, being spaced between the two side of open slot 33 gradually to increase.So, elastic portion
31 cans are realized and are flared out.By being easy to elastic portion 31 to produce elastic deformation provided with such open slot 33, so as to realize
Clamp workpiece.
As shown in Fig. 2 further, in the present embodiment, the longitudinal cross-section of press section 21 is tapered；Outside longitudinal cross-section
Footpath is tapered into by one end away from installation end 12 to one end close to installation end 12.Specifically, when press section 21 is squeezed in bullet
During property portion 31, press section 21 and the contact area of elastic portion 31 can gradually increase.In the process, elastic portion 31 can realize by
Gradually it is flared out.By that can prevent workpiece from being ruptured in clamping process provided with such press section 21.
Certainly, the external diameter of the longitudinal cross-section of press section 21 can also be invariable.Accordingly, by above-mentioned second jack hole
32 internal diameter is tapered into by one end away from installation end 12 to one end close to installation end 12.No matter which kind of press section 21 uses
Mode, elastic portion 31 can only be extruded so that elastic portion 31 is radially gradually flared out along main shaft 10.
As shown in figure 3, further, in the present embodiment, clamping element 30 is provided with multiple mounting holes 34；Multiple mounting holes 34
Around the central axis circumference array of clamping element 30；Threaded fastener is each equipped with each mounting hole 34；On installation end 12
Provided with multiple screwed holes；Multiple screwed holes correspond screw thread with multiple threaded fasteners and coordinated.Specifically, by using instrument
Threaded fastener is screwed in screwed hole.In this manner it is possible to clamping element 30 is set to be fixed on main shaft 10.By provided with such peace
Dress hole 34, threaded fastener and screwed hole are easy to make clamping element 30 and main shaft 10 affixed.
As shown in figures 1 and 3, further, in the present embodiment, it is provided with clamping element 30 close to one end of installation end 12
Guide part 35；Guide part 35 is stretched into movable chamber 11, so that mounting hole 34 docks with screwed hole.Specifically, in installation clamping element
When 30, first it is directed to portion 35 and stretches into movable chamber 11.In this manner it is possible to clamping element 30 is set tentatively to be fixed on main shaft 10.At this moment,
Just mounting hole 34 can be made to be docked with screwed hole by rotating clamping element 30.By the way that clamping can be made provided with such guide part 35
Part 30 realizes fast positioning.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (10)
- A kind of 1. clamping tool, it is characterised in that：Including main shaft, motion bar and clamping element；The main shaft is articulated in outside machine Bed；The main shaft is provided with movable chamber；The motion bar is movable to be installed in the movable chamber；One end of the main shaft forms peace Fill end；The clamping element is removably fixed to the installation end；The motion bar can be towards close or remote institute State installation end motion；The motion bar stretches into the clamping element when towards close to the installation end motion；The clamping element is remote One end from the installation end is provided with elastic portion；The motion bar is provided with press section close to one end of the installation end；It is described to squeeze Splenium is used to extrude the elastic portion when the motion bar stretches into the clamping element, so that the elastic portion is along the main shaft Radially outward open.
- 2. clamping tool as claimed in claim 1, it is characterised in that：Have elastic component built in the movable chamber；The elasticity Element is used to provide the elastic stress for making the motion bar stretch into the clamping element.
- 3. clamping tool as claimed in claim 2, it is characterised in that：The movable chamber is provided with limited step；The motion bar One end away from the installation end is provided with positive stop lug boss；The flexible member be located in the positive stop lug boss and limited step it Between；The positive stop lug boss is connected to the bottom wall of the movable chamber when the motion bar is towards close to the installation end motion.
- 4. clamping tool as claimed in claim 3, it is characterised in that：The bottom wall of the movable chamber is provided with the first jack hole；Institute State the one end of positive stop lug boss away from the installation end and be provided with extension；The extension is connected to first jack hole, and by First jack hole stretches out.
- 5. clamping tool as claimed in claim 4, it is characterised in that：The one end of the extension away from the installation end is provided with Compression face；The one end of the main shaft away from the installation end is provided with straight line driving mechanism；The straight line driving mechanism is used for top pressure The compression face, so that the motion bar is away from the installation end motion.
- 6. clamping tool as claimed in claim 1, it is characterised in that：The clamping element is provided with the second jack hole；Described second Jack hole is communicated in the movable chamber；The motion bar is connected to second jack hole.
- 7. clamping tool as claimed in claim 6, it is characterised in that：The one end of the clamping element away from the installation end is provided with It is communicated in the open slot of second jack hole；The open slot is axially extending along the clamping element；The side of the open slot Wall forms the elastic portion.
- 8. clamping tool as claimed in claim 1, it is characterised in that：The longitudinal cross-section of the press section is tapered；It is described vertical Tapered into the external diameter in section by one end away from the installation end to one end close to the installation end.
- 9. the clamping tool as described in claim any one of 1-8, it is characterised in that：The clamping element is provided with multiple mounting holes； Central axis circumference array of multiple mounting holes around the clamping element；Each mounting hole is each equipped with screw threads for fastening Part；The installation end is provided with multiple screwed holes；Multiple screwed holes correspond screw thread with multiple threaded fasteners and matched somebody with somebody Close.
- 10. clamping tool as claimed in claim 9, it is characterised in that：The clamping element is set close to one end of the installation end There is guide part；The guide part is stretched into the movable chamber, so that the mounting hole docks with screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807761.1A CN107511707A (en) | 2017-09-08 | 2017-09-08 | A kind of clamping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807761.1A CN107511707A (en) | 2017-09-08 | 2017-09-08 | A kind of clamping tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107511707A true CN107511707A (en) | 2017-12-26 |
Family
ID=60725169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807761.1A Pending CN107511707A (en) | 2017-09-08 | 2017-09-08 | A kind of clamping tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107511707A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668137A (en) * | 1983-11-21 | 1987-05-26 | Mitsui Seiki Kogyo Co., Ltd. | High-frequency motor incorporating tool drawing-up device therein |
| CN2578037Y (en) * | 2002-09-12 | 2003-10-08 | 慈溪市三酉实业有限公司 | Automatic clamp device for machine tool |
| CN201792238U (en) * | 2010-09-27 | 2011-04-13 | 南通众联科技服务有限公司 | Machine tool fixture |
| CN204108353U (en) * | 2014-08-06 | 2015-01-21 | 山东泰开精密铸造有限公司 | For being sleeved on the swelling device of thin-walled revolution workpiece inner surface |
| CN204935200U (en) * | 2015-07-16 | 2016-01-06 | 李文博 | A kind of main shaft |
| CN105252023A (en) * | 2015-11-23 | 2016-01-20 | 重庆欧博特智能机器人科技有限公司 | Machine tool spindle |
| CN205057613U (en) * | 2015-10-12 | 2016-03-02 | 武汉捷众汽车零部件有限公司 | Little excircle part turning attachment |
| CN205996241U (en) * | 2016-08-30 | 2017-03-08 | 津上精密机床（浙江）有限公司 | A kind of internal expansion type collet attachment |
-
2017
- 2017-09-08 CN CN201710807761.1A patent/CN107511707A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668137A (en) * | 1983-11-21 | 1987-05-26 | Mitsui Seiki Kogyo Co., Ltd. | High-frequency motor incorporating tool drawing-up device therein |
| CN2578037Y (en) * | 2002-09-12 | 2003-10-08 | 慈溪市三酉实业有限公司 | Automatic clamp device for machine tool |
| CN201792238U (en) * | 2010-09-27 | 2011-04-13 | 南通众联科技服务有限公司 | Machine tool fixture |
| CN204108353U (en) * | 2014-08-06 | 2015-01-21 | 山东泰开精密铸造有限公司 | For being sleeved on the swelling device of thin-walled revolution workpiece inner surface |
| CN204935200U (en) * | 2015-07-16 | 2016-01-06 | 李文博 | A kind of main shaft |
| CN205057613U (en) * | 2015-10-12 | 2016-03-02 | 武汉捷众汽车零部件有限公司 | Little excircle part turning attachment |
| CN105252023A (en) * | 2015-11-23 | 2016-01-20 | 重庆欧博特智能机器人科技有限公司 | Machine tool spindle |
| CN205996241U (en) * | 2016-08-30 | 2017-03-08 | 津上精密机床（浙江）有限公司 | A kind of internal expansion type collet attachment |
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|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171226 |